Perhaps you should try some spelling variations:
thuat sac » thuat sach, thuat san, thuat tac
doanh cua » doanh luan
doanh va » doan va, doanh tai, hanh va
ky sang » ky nang, ky dang, ky tang
sang ma » tang ma, nang ma, sang tao
hieu va » lieu va, hieu qua
cua te » cua tu
sac ky » cac ky, sai ky
va cam » va cham, va cac, va cao
ma hoi » mai hoi, xa hoi, ma hoa

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sac ky sang ma hoi. hieu va cam ((xuc vay) or (xuc hay)) ((doanh va) OR (doanh cua)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sac ky sang ma hoi. hieu va cam ((xuc vay) OR (xuc hay)) ((doanh va) OR (doanh cua)) cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sac ky sang ma hoi. hieu va cam ((xuc vay) or (xuc hay)) ((doanh va) OR (doanh cua)) cua te*".